Foreign currency had larger impact than company initially expected

St. Jude Medical Inc. lowered its earnings outlook for 2015 amid a larger impact from foreign currency than initially expected.

For the full year, St. Jude Medical said Wednesday that it now expects adjusted earnings of $3.92 to $3.97 a share, down from its previous guidance of $3.95 to $4 a share. The company forecasts a currency impact of $385 million to $410 million, up from its previous forecast of $325 million to $350...